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-rw-r--r--drivers/painter/st77xx/qp_st7789.c144
-rw-r--r--drivers/painter/st77xx/qp_st7789.h44
-rw-r--r--drivers/painter/st77xx/qp_st7789_opcodes.h64
-rw-r--r--drivers/painter/st77xx/qp_st77xx_opcodes.h51
4 files changed, 303 insertions, 0 deletions
diff --git a/drivers/painter/st77xx/qp_st7789.c b/drivers/painter/st77xx/qp_st7789.c
new file mode 100644
index 0000000000..d005ece050
--- /dev/null
+++ b/drivers/painter/st77xx/qp_st7789.c
@@ -0,0 +1,144 @@
+// Copyright 2021 Paul Cotter (@gr1mr3aver)
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "qp_internal.h"
+#include "qp_comms.h"
+#include "qp_st7789.h"
+#include "qp_st77xx_opcodes.h"
+#include "qp_st7789_opcodes.h"
+#include "qp_tft_panel.h"
+
+#ifdef QUANTUM_PAINTER_ST7789_SPI_ENABLE
+# include "qp_comms_spi.h"
+#endif // QUANTUM_PAINTER_ST7789_SPI_ENABLE
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Common
+
+// Driver storage
+tft_panel_dc_reset_painter_device_t st7789_drivers[ST7789_NUM_DEVICES] = {0};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Automatic viewport offsets
+
+#ifndef ST7789_NO_AUTOMATIC_OFFSETS
+static inline void st7789_automatic_viewport_offsets(painter_device_t device, painter_rotation_t rotation) {
+ struct painter_driver_t *driver = (struct painter_driver_t *)device;
+
+ // clang-format off
+ const struct {
+ uint16_t offset_x;
+ uint16_t offset_y;
+ } rotation_offsets_240x240[] = {
+ [QP_ROTATION_0] = { .offset_x = 0, .offset_y = 0 },
+ [QP_ROTATION_90] = { .offset_x = 0, .offset_y = 0 },
+ [QP_ROTATION_180] = { .offset_x = 0, .offset_y = 80 },
+ [QP_ROTATION_270] = { .offset_x = 80, .offset_y = 0 },
+ };
+ // clang-format on
+
+ if (driver->panel_width == 240 && driver->panel_height == 240) {
+ driver->offset_x = rotation_offsets_240x240[rotation].offset_x;
+ driver->offset_y = rotation_offsets_240x240[rotation].offset_y;
+ }
+}
+#endif // ST7789_NO_AUTOMATIC_OFFSETS
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Initialization
+
+bool qp_st7789_init(painter_device_t device, painter_rotation_t rotation) {
+ // clang-format off
+ const uint8_t st7789_init_sequence[] = {
+ // Command, Delay, N, Data[N]
+ ST77XX_CMD_RESET, 120, 0,
+ ST77XX_CMD_SLEEP_OFF, 5, 0,
+ ST77XX_SET_PIX_FMT, 0, 1, 0x55,
+ ST77XX_CMD_INVERT_ON, 0, 0,
+ ST77XX_CMD_NORMAL_ON, 0, 0,
+ ST77XX_CMD_DISPLAY_ON, 20, 0
+ };
+ // clang-format on
+ qp_comms_bulk_command_sequence(device, st7789_init_sequence, sizeof(st7789_init_sequence));
+
+ // Configure the rotation (i.e. the ordering and direction of memory writes in GRAM)
+ const uint8_t madctl[] = {
+ [QP_ROTATION_0] = ST77XX_MADCTL_RGB,
+ [QP_ROTATION_90] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MX | ST77XX_MADCTL_MV,
+ [QP_ROTATION_180] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MX | ST77XX_MADCTL_MY,
+ [QP_ROTATION_270] = ST77XX_MADCTL_RGB | ST77XX_MADCTL_MV | ST77XX_MADCTL_MY,
+ };
+ qp_comms_command_databyte(device, ST77XX_SET_MADCTL, madctl[rotation]);
+
+#ifndef ST7789_NO_AUTOMATIC_VIEWPORT_OFFSETS
+ st7789_automatic_viewport_offsets(device, rotation);
+#endif // ST7789_NO_AUTOMATIC_VIEWPORT_OFFSETS
+
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Driver vtable
+
+const struct tft_panel_dc_reset_painter_driver_vtable_t st7789_driver_vtable = {
+ .base =
+ {
+ .init = qp_st7789_init,
+ .power = qp_tft_panel_power,
+ .clear = qp_tft_panel_clear,
+ .flush = qp_tft_panel_flush,
+ .pixdata = qp_tft_panel_pixdata,
+ .viewport = qp_tft_panel_viewport,
+ .palette_convert = qp_tft_panel_palette_convert,
+ .append_pixels = qp_tft_panel_append_pixels,
+ },
+ .rgb888_to_native16bit = qp_rgb888_to_rgb565_swapped,
+ .num_window_bytes = 2,
+ .swap_window_coords = false,
+ .opcodes =
+ {
+ .display_on = ST77XX_CMD_DISPLAY_ON,
+ .display_off = ST77XX_CMD_DISPLAY_OFF,
+ .set_column_address = ST77XX_SET_COL_ADDR,
+ .set_row_address = ST77XX_SET_ROW_ADDR,
+ .enable_writes = ST77XX_SET_MEM,
+ },
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// SPI
+
+#ifdef QUANTUM_PAINTER_ST7789_SPI_ENABLE
+
+// Factory function for creating a handle to the ST7789 device
+painter_device_t qp_st7789_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode) {
+ for (uint32_t i = 0; i < ST7789_NUM_DEVICES; ++i) {
+ tft_panel_dc_reset_painter_device_t *driver = &st7789_drivers[i];
+ if (!driver->base.driver_vtable) {
+ driver->base.driver_vtable = (const struct painter_driver_vtable_t *)&st7789_driver_vtable;
+ driver->base.comms_vtable = (const struct painter_comms_vtable_t *)&spi_comms_with_dc_vtable;
+ driver->base.panel_width = panel_width;
+ driver->base.panel_height = panel_height;
+ driver->base.rotation = QP_ROTATION_0;
+ driver->base.offset_x = 0;
+ driver->base.offset_y = 0;
+ driver->base.native_bits_per_pixel = 16; // RGB565
+
+ // SPI and other pin configuration
+ driver->base.comms_config = &driver->spi_dc_reset_config;
+ driver->spi_dc_reset_config.spi_config.chip_select_pin = chip_select_pin;
+ driver->spi_dc_reset_config.spi_config.divisor = spi_divisor;
+ driver->spi_dc_reset_config.spi_config.lsb_first = false;
+ driver->spi_dc_reset_config.spi_config.mode = spi_mode;
+ driver->spi_dc_reset_config.dc_pin = dc_pin;
+ driver->spi_dc_reset_config.reset_pin = reset_pin;
+ return (painter_device_t)driver;
+ }
+ }
+ return NULL;
+}
+
+#endif // QUANTUM_PAINTER_ST7789_SPI_ENABLE
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/drivers/painter/st77xx/qp_st7789.h b/drivers/painter/st77xx/qp_st7789.h
new file mode 100644
index 0000000000..ec61f5d70b
--- /dev/null
+++ b/drivers/painter/st77xx/qp_st7789.h
@@ -0,0 +1,44 @@
+// Copyright 2021 Paul Cotter (@gr1mr3aver)
+// Copyright 2021 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "gpio.h"
+#include "qp_internal.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ST7789 configurables (add to your keyboard's config.h)
+
+#ifndef ST7789_NUM_DEVICES
+/**
+ * @def This controls the maximum number of ST7789 devices that Quantum Painter can communicate with at any one time.
+ * Increasing this number allows for multiple displays to be used.
+ */
+# define ST7789_NUM_DEVICES 1
+#endif
+
+// Additional configuration options to be copied to your keyboard's config.h (don't change here):
+
+// If you know exactly which offsets should be used on your panel with respect to selected rotation, then this config
+// option allows you to save some flash space -- you'll need to invoke qp_set_viewport_offsets() instead from your keyboard.
+// #define ST7789_NO_AUTOMATIC_VIEWPORT_OFFSETS
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ST7789 device factories
+
+#ifdef QUANTUM_PAINTER_ST7789_SPI_ENABLE
+/**
+ * Factory method for an ST7789 SPI LCD device.
+ *
+ * @param panel_width[in] the width of the display panel
+ * @param panel_height[in] the height of the display panel
+ * @param chip_select_pin[in] the GPIO pin used for SPI chip select
+ * @param dc_pin[in] the GPIO pin used for D/C control
+ * @param reset_pin[in] the GPIO pin used for RST
+ * @param spi_divisor[in] the SPI divisor to use when communicating with the display
+ * @param spi_mode[in] the SPI mode to use when communicating with the display
+ * @return the device handle used with all drawing routines in Quantum Painter
+ */
+painter_device_t qp_st7789_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode);
+#endif // QUANTUM_PAINTER_ST7789_SPI_ENABLE
diff --git a/drivers/painter/st77xx/qp_st7789_opcodes.h b/drivers/painter/st77xx/qp_st7789_opcodes.h
new file mode 100644
index 0000000000..b5baba7184
--- /dev/null
+++ b/drivers/painter/st77xx/qp_st7789_opcodes.h
@@ -0,0 +1,64 @@
+// Copyright 2021 Paul Cotter (@gr1mr3aver)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ST7789 additional command opcodes
+
+// System function commands
+#define ST7789_GET_SELF_DIAG 0x0F // Get self-diagnostic result
+#define ST7789_SET_VERT_SCRL 0x33 // Set vertical scroll definition
+#define ST7789_SET_VERT_SCRL_ADDR 0x37 // SEt Vertical scroll start address
+#define ST7789_SET_MEM_CONT 0x3C // Memory Write continue
+#define ST7789_GET_MEM_CONT 0x3E // Memory Read continue
+#define ST7789_SET_TEAR_LINE 0x44 // Set tear scanline
+#define ST7789_GET_TEAR_LINE 0x45 // Get tear scanline
+#define ST7789_SET_BRIGHTNESS 0x51 // Set display brightness
+#define ST7789_GET_BRIGHTNESS 0x52 // Get display brightness
+#define ST7789_SET_CTRL 0x53 // Set CTRL display
+#define ST7789_GET_CTRL 0x54 // Get CTRL display value
+#define ST7789_SET_CAB_COLOR 0x55 // Set content adaptive brightness control and color enhancement
+#define ST7789_GET_CAB_COLOR 0x56 // Get content adaptive brightness control and color enhancement
+#define ST7789_SET_CAB_BRIGHTNESS 0x5E // Set content adaptive minimum brightness
+#define ST7789_GET_CAB_BRIGHTNESS 0x5F // Get content adaptive minimum brightness
+#define ST7789_GET_ABC_SELF_DIAG 0x68 // Get Auto brightness control self diagnostics
+
+// Panel Function Commands
+#define ST7789_SET_RAM_CTL 0xB0 // Set RAM control
+#define ST7789_SET_RGB_CTL 0xB1 // Set RGB control
+#define ST7789_SET_PORCH_CTL 0xB2 // Set Porch control
+#define ST7789_SET_FRAME_RATE_CTL_1 0xB3 // Set frame rate control 1
+#define ST7789_SET_PARTIAL_CTL 0xB5 // Set Partial control
+#define ST7789_SET_GATE_CTL 0xB7 // Set gate control
+#define ST7789_SET_GATE_ON_TIMING 0xB8 // Set gate on timing adjustment
+#define ST7789_SET_DIGITAL_GAMMA_ON 0xBA // Enable digital gamma
+#define ST7789_SET_VCOM 0xBB // Set VCOM
+#define ST7789_SET_POWER_SAVE 0xBC // Set power saving mode
+#define ST7789_SET_DISP_OFF_POWER 0xBD // Set display off power saving
+#define ST7789_SET_LCM_CTL 0xC0 // Set LCM control
+#define ST7789_SET_IDS 0xC1 // Set IDs
+#define ST7789_SET_VDV_VRH_ON 0xC2 // Set VDV and VRH command enable
+#define ST7789_SET_VRH 0xC3 // Set VRH
+#define ST7789_SET_VDV 0xC4 // Set VDV
+#define ST7789_SET_VCOM_OFFSET 0xC5 // Set VCOM offset ctl
+#define ST7789_SET_FRAME_RATE_CTL_2 0xC6 // Set frame rate control 2
+#define ST7789_SET_CABC_CTL 0xC7 // Set CABC Control
+#define ST7789_GET_REG_1 0xC8 // Get register value selection1
+#define ST7789_GET_REG_2 0xCA // Get register value selection2
+#define ST7789_SET_PWM_FREQ 0xCC // Set PWM frequency
+#define ST7789_SET_POWER_CTL_1 0xD0 // Set power ctl 1
+#define ST7789_SET_VAP_VAN_ON 0xD2 // Enable VAP/VAN signal output
+#define ST7789_SET_CMD2_ENABLE 0xDF // Enable command 2
+#define ST7789_SET_PGAMMA 0xE0 // Set positive gamma
+#define ST7789_SET_NGAMMA 0xE1 // Set negative gamma
+#define ST7789_SET_DIGITAL_GAMMA_RED 0xE2 // Set digital gamma lookup table for red
+#define ST7789_SET_DIGITAL_GAMMA_BLUE 0xE3 // Get digital gamma lookup table for blue
+#define ST7789_SET_GATE_CTL_2 0xE4 // Set gate control 2
+#define ST7789_SET_SPI2_ENABLE 0xE7 // Enable SPI2
+#define ST7789_SET_POWER_CTL_2 0xE8 // Set power ctl 2
+#define ST7789_SET_EQ_TIME_CTL 0xE9 // Set equalize time control
+#define ST7789_SET_PROG_CTL 0xEC // Set program control
+#define ST7789_SET_PROG_MODE_ENABLE 0xFA // Set program mode enable
+#define ST7789_SET_NVMEM 0xFC // Set NVMEM data
+#define ST7789_SET_PROG_ACTION 0xFE // Set program action
diff --git a/drivers/painter/st77xx/qp_st77xx_opcodes.h b/drivers/painter/st77xx/qp_st77xx_opcodes.h
new file mode 100644
index 0000000000..131378d832
--- /dev/null
+++ b/drivers/painter/st77xx/qp_st77xx_opcodes.h
@@ -0,0 +1,51 @@
+// Copyright 2021 Paul Cotter (@gr1mr3aver)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter ST77XX command opcodes
+
+// System function commands
+#define ST77XX_CMD_NOP 0x00 // No operation
+#define ST77XX_CMD_RESET 0x01 // Software reset
+#define ST77XX_GET_ID_INFO 0x04 // Get ID information
+#define ST77XX_GET_STATUS 0x09 // Get status
+#define ST77XX_GET_PWR_MODE 0x0A // Get power mode
+#define ST77XX_GET_MADCTL 0x0B // Get mem access ctl
+#define ST77XX_GET_PIX_FMT 0x0C // Get pixel format
+#define ST77XX_GET_IMG_FMT 0x0D // Get image format
+#define ST77XX_GET_SIG_MODE 0x0E // Get signal mode
+#define ST77XX_CMD_SLEEP_ON 0x10 // Enter sleep mode
+#define ST77XX_CMD_SLEEP_OFF 0x11 // Exist sleep mode
+#define ST77XX_CMD_PARTIAL_ON 0x12 // Enter partial mode
+#define ST77XX_CMD_NORMAL_ON 0x13 // Exit partial mode
+#define ST77XX_CMD_INVERT_OFF 0x20 // Exit inverted mode
+#define ST77XX_CMD_INVERT_ON 0x21 // Enter inverted mode
+#define ST77XX_SET_GAMMA 0x26 // Set gamma params
+#define ST77XX_CMD_DISPLAY_OFF 0x28 // Disable display
+#define ST77XX_CMD_DISPLAY_ON 0x29 // Enable display
+#define ST77XX_SET_COL_ADDR 0x2A // Set column address
+#define ST77XX_SET_ROW_ADDR 0x2B // Set page (row) address
+#define ST77XX_SET_MEM 0x2C // Set memory
+#define ST77XX_GET_MEM 0x2E // Get memory
+#define ST77XX_SET_PARTIAL_AREA 0x30 // Set partial area
+#define ST77XX_CMD_TEARING_OFF 0x34 // Tearing line disabled
+#define ST77XX_CMD_TEARING_ON 0x35 // Tearing line enabled
+#define ST77XX_SET_MADCTL 0x36 // Set mem access ctl
+#define ST77XX_CMD_IDLE_OFF 0x38 // Exit idle mode
+#define ST77XX_CMD_IDLE_ON 0x39 // Enter idle mode
+#define ST77XX_SET_PIX_FMT 0x3A // Set pixel format
+#define ST77XX_GET_ID1 0xDA // Get ID1
+#define ST77XX_GET_ID2 0xDB // Get ID2
+#define ST77XX_GET_ID3 0xDC // Get ID3
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// MADCTL Flags
+#define ST77XX_MADCTL_MY 0b10000000
+#define ST77XX_MADCTL_MX 0b01000000
+#define ST77XX_MADCTL_MV 0b00100000
+#define ST77XX_MADCTL_ML 0b00010000
+#define ST77XX_MADCTL_RGB 0b00000000
+#define ST77XX_MADCTL_BGR 0b00001000
+#define ST77XX_MADCTL_MH 0b00000100
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 02:31:45 +0000